Hi again Nick and Ruth,
Some links as promised to show pictures and prices from various suppliers.
Everything you need for a 6kg kit from Gasit
A 6kg Gaslow refillable bottle only from Hamilton Gas, reasonably priced with free postage but Gaslow accessories, filling points etc. are much dearer, not only at Hamilton Gas but in general.
The adaptor I referred to previously to change from refillable (Butane outlet) to standard Calor Propane outlet. Dearer here at Gasit but would probably be combined in postage if ordering bottle kit.
Same adaptor her from Hamilton Gas, much cheaper but postage to consider.
The 3 part fill-point adaptors for Europe, including latest Spanish adaptor, in carry bag from Gasit. Again, would probably combine postage if bought with other items.
A complete 6kg refillable kit from Autogas 2000, including fill-point, fill=point rubber hose and POL adaptor £161.13.